I used to believe there was monster (he looked rather like a Yowie) living in the plumbing who would suck out all the water when you pulled the plug, that's why there were all those slurping noises. My sister told me if you sat in the bath while it was draining, he would eat you too!!
A childhood belief about bathrooms

others believed things like this
- I used to think that if you take the plug out of the bath it will suck you into the bath— awesome kid
- I used to believe that once you pulled the plug in the bath a shark would swim out of the drain and eat you.— Amy
- when i was around 3 or 4 i belived that the sea had a large plug like a bath and it was draind every night — James Cameron
- I used to believe that if i splashed water on the wall during a bath, the water would turn into spiders— justin
- I used to believe that a monster would crawl out of the bath tub and eat me— Alex
- If you left a plug socket on with no plug in all the power would run outAnon